LibGuides: GovSpeak: A Guide to U.S. Government Acronyms & Abbreviations: C

C2C	Coverage to Care
C2M2	Cybersecurity Capability Maturity Model
C2QA	Co-design Center for Quantum Advantage
C3	Critical Infrastructure Cyber Community Voluntary Program (unable to verify 8/19) \| Culturally Competent Gender-Related Communications (unable to verify 1/25) \| Cyber Crimes Center \| Pacific Northwest Climate Change Collaboration (unable to verify 9/15)
C3D	Computation and Data Driven Discovery Division (unable to verify 1/25)
C3RS	Confidential Close Call Reporting System
C3TI	CDER Center for Clinical Trial Innovation
C3VP	Critical Infrastructure Cyber Community Voluntary Program (unable to verify 12/23)
C&T	Cotton and Tobacco Program
CA	Bureau of Consular Affairs
CAAAC	Clean Air Act Advisory Committee
CAAC	Civilian Agency Acquisition Council
CAAR	Cost Analysis and Audit Resolution (unable to verify 4/25)
CAB	Climate Analysis Branch (unable to verify 11/18)
CABBI	Center for Advanced Bioenergy and Bioproducts Innovation
CABHI	Cooperative Agreements to Benefit Homeless Individuals (unable to verify 8/23)
caBIG	Cancer Biomedical Informatics Grid (defunct)
CABS	Country Analysis Briefs
CAC	Census Advisory Committee (terminated 2/25) \| Clouds, Aerosol, & Climate program
CACFP	Child and Adult Care Food Program
CACGP	College Access Challenge Grant Program (unable to verify 9/24)
CACL	Carbonate Aquifer Characterization Laboratory
CACMS	Consular Affairs Crisis Management System (pdf)
CADDIS	Causal Analysis/Diagnosis Decision Information System
CADR	Collaborative Action and Dispute Resolution, BLM \| Office of Collaborative Action and Dispute Resolution, DOI
CADRO	Collaboration and Alternative Dispute Resolution Office
CADRS	Office of Consumer Affairs & Dispute Resolution Services
CADS	Cyber Analytic and Data System

CAE	Centers of Academic Excellence
CAEO	Cyber Academic Engagement Office
CAERS	CFSAN Adverse Event Reporting System (replaced by HFCS)
CAF	COVID-19 Coverage Assistance Fund (discontinued)
CAFA	Climate and Fisheries Adaptation Program
CAFE	Chemical Aquatic Fate and Effects database \| Convene, Accelerate, Foster, and Expand (unable to verify 2/25) \| Corporate Average Fuel Economy
CAFS	Capital Access Financial System
CAG	Community Advisory Group
CAH	Consumer Action Handbook (unable to verify 3/21)
CAHPS	Consumer Assessment of Healthcare Providers and Systems
CAI	Center for Accelerating Innovation
CAIF	Comparative Assessment of the Impacts of Prescribed Fire Versus Wildfire
CAIR	Current Agricultural Industrial Reports
CAIS	Childhood Agricultural Injury Survey (unable to verify 11/21) \| Office of Citizenship and Applicant Information Services
CAISI	Center for AI Standards and Innovation
CAIVRS	Credit Alert Verification Reporting System
CAL	Compassionate Allowances
CALC	Contract-Awarded Labor Category
CalFiDe	California Fire Dynamics Experiment
CALiPER	Commercially Available LED Product Evaluation and Reporting
CALIPSO	Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation
CALM	Consolidated Assessment and Listing Methodology
CalNEMO	California Non-native Estuarine Marine Organisms
CalVO	California Volcano Observatory
CAM	Central American Minors Refugee and Parole Program
CAMD	Clean Air Markets Division
CAMEO	Computer-Aided Management of Emergency Operations
CAMI	Civil Aerospace Medical Institute
CAMICC	CDC/ATSDR Minority Initiatives Coordinating Committee (defunct)
CAMP	College Assistance Migrant Program
CAMPD	Clean Air Markets Program Data
CAMS	Center for Accelerator Mass Spectrometry

CAN	Cures Acceleration Network
caNanoLab	cancer Nanotechnology Laboratory
CANDOR	Communication and Optimal Resolution
CannaQAP	Cannabis Quality Assurance Program
CanQues	Cancer Query Systems
CAOC	Chief Acquisition Officers Council
CAOE	Center for Accelerating Operational Efficiency
CAP	Capability Acceptance Process \| Client Assistance Program \| Climate Adaption Partnerships \| Collections Assessment for Preservation \| Consulting and Advanced Projects Directorate \| Criminal Alien Program (changed to Criminal Apprehension Program; reverted to "Alien" 1/25) \| Cross-Agency Performance Goals (inactive)
CAPFUND	Capital Fund
CapGam	Thermal Neutron Capture γ's
CAP-M	CISA Advanced Analytics Platform for Machine Learning
CAPP	Coastal Aquaculture Planning Portal
CAPPS II	Computer Assisted Passenger Prescreening System (unable to verify; see GAO Report)
CAP/RISA	Climate Adaptation Partnerships/Regional Integrated Sciences and Assessments
CAPS	Commerce Alternative Personnel System \| Cooperative Agricultural Pest Survey
CAPSA	Census of Adult Parole Supervising Agencies
CAP-SSSE	Community Assistance Program – State Support Services Element
CAPT	Center for the Application of Prevention Technologies (unable to verify 5/19)
CAPTA List	List of Foreign Financial Institutions Subject to Correspondent Account or Payable-Through Account Sanctions
CAPUS	Care and Prevention in the United States (unable to verify 12/24)
CAR	Climate Action Report (archived)
CARA	Conjunction Assessment Risk Analysis
CARAT	Commercial Adoption Readiness Assessment Tool
CARB	Combating Antibiotic-Resistant Bacteria
CARD	Child Abduction Rapid Deployment Team
CARDS	Computer Access to Research on Dietary Supplements
CARE	Community Action for a Renewed Environment (unavailable 2/18) \| Coordinator for Afghan Relocation Efforts \| Critical Agricultural Research and Extension
CARES	Civil Aircraft Registry Electronic Services
CARISSMA	CHIPS AI/AE for Rapid, Industry-informed Sustainable Semiconductor Materials and Processes

CAROL	Case Analysis and Reporting Online
CaRPE	Carbon Reduction Potential Evaluation Tool
CARRA	Center for Administrative Records Research and Applications
CARS	Car Allowance Rebate System (defunct) \| Central Accounting Reporting System \| Child Care Automated Reporting System
CART	Community Assessment Reporting Tool
CARTS	CHIP Annual Reporting Template System
CARVE	Carbon in Arctic Reservoirs Vulnerability Experiment
CAS	Card Acquiring Service \| Corporate Applications Search \| Office for Civil Rights Complaint Assessment System
CAS Board	Cost Accounting Standards Board (unable to verify 2/25)
CASA	Cooperative Adversarial Security Assessments
CASAC	Clean Air Scientific Advisory Committee
CA SBLCs	Community Advantage Small Business Lending Companies
CASC	Center for Applied Scientific Computing \| Central American Service Corps (unable to verify 2/25) \| Climate Adaptation Science Center
CASEI	Catalog of Archived Suborbital Earth Science Investigations
CASL	Consortium for Advanced Simulation of Light Water Reactors
CASM	Communication Assets Survey and Mapping Tool
CASMIRC	Child Abduction and Serial Murder Investigative Resources Center (unable to verify 6/18)
CASOM	Comprehensive Approaches to Sex Offender Management Program (unable to verify 6/20)
CASPER	Community Assessment for Public Health Emergency Response
CASPIR	CDC and ATSDR Specimen Packaging, Inventory and Repository (unable to verify 8/14)
CASS	Coastal Aquaculture Siting and Sustainability
CASTNET	Clean Air Status and Trends Network
CASU	Cooperative Administrative Support Units (defunct)
CAT	Chemical Catalysis \| Consolidated Audit Trail
CAT-2	Credential Authentication Technology 2
CATALYST	Computational ADME-Tox and Physiology Analysis for Safer Therapeutics
CATC	Clean Air Technology Center \| College Affordability and Transparency Center
CATEF	College Affordability and Transparency Explanation Form
CATI	California Clean Air Technology Initiative
CATR	Office of Conventional Arms Threat Reduction
CatReg	Categorical Regression Analysis
CATS	Center for the Advancement of Topological Semimetals \| Central Application Tracking System \| Cloud-Aerosol Transport System \| Consolidated Asset Tracking System
CATT	Cybersecurity Assessment Tool for Transit
CAVC	United States Court of Appeals for Veterans Claims
CAVP	Cryptographic Algorithm Validation Program
CAVSS	Centralized Area Video Surveillance System
CAW	Center for Animal Welfare
CAWSC	California Water Science Center

CB	Children's Bureau \| Communications Branch
CBA	Office of Commercial and Business Affairs
CBB	Capacity Building Branch (unable to verify 12/24) \| Census Business Builder
CBC	Chemical and Biological Controls Division \| Chemical Biology Consortium
CBCA	Civilian Board of Contract Appeals
CBD	Chemical and Biological Defense Division (archived) \| Commerce Business Daily (changed to FBO)
CBECS	Commercial Buildings Energy Consumption Survey
CBER	Center for Biologics Evaluation and Research
CBES	Center for BioEnergy Sustainability
CBET	Division of Chemical, Bioengineering, Environmental, and Transport Systems
CBFCC	Cross-Border Financial Crime Center
CBHSQ	Center for Behavioral Health Statistics and Quality
CBI	Center for Bioenergy Innovation \| Center for Biological Informatics (unable to verify 3/13)
CBIBS	Chesapeake Bay Interpretive Buoy System
CBIIT	Center for Biomedical Informatics & Information Technology
CBL	Chemical Biology Laboratory
CBMP	Cell Biology and Metabolism Program (unable to verify 11/16)

CBO	Congressional Budget Office
CBOB	Law Enforcement Congressional Badge of Bravery Program
CBOPC	Chief Business Office Purchased Care (changed to OCC)
C-BOT	Forecast of Commerce Business Opportunities Tool
CBP	County Business Patterns \| Customs and Border Protection
CBPO	Chesapeake Bay Program Office
CBPR	Community Based Participatory Research Program (unable to verify 4/25)
CBRN	Chemical, Biological, Radiological, and Nuclear
CBRNE	Chemical, Biological, Radiological, Nuclear, and Explosives
CBRS	Coastal Barrier Resources System
CBS	Cytokine Biology Section (unable to verify 1/17) \| Division of Chemical & Biological Sciences
CBS HEAL	Community-Based Survey of Supports for Healthy Eating and Active Living
CBSM	Center for Behavioral Science Methods
CBTS	Cross-Border Threat Screening and Supply Chain Defense
CBW	Office of Chemical and Biological Weapons Affairs
CBWI	Chesapeake Bay Watershed Initiative (unable to verify 11/22)
CBWR	Community-Based Water Resiliency
CBX	Children's Bureau Express

CC	NIH Clinical Center
CCA	Counter-Improvised Explosive Device (C-IED) Capabilities Assessments Program
CCAC	Citizens Coinage Advisory Committee
CCAM	Coordinating Council on Access and Mobility
CCAMPIS	Child Care Access Means Parents in School Program
C-CAP	Coastal Change Analysis Program
CCAR	Comprehensive Capital Analysis and Review
CCARE	Controlling Childhood Asthma and Reducing Emergencies
CCB	Child Care Bureau (changed to OCC) \| Clinical Chemistry Branch \| Copyright Claims Board
CCBHCs	Certified Community Behavioral Health Clinics
CC&C	Clean Cities and Communities
CCC	Center for Communications and Computing \| Citizen Complaint Center (changed to Complaint Center, then to general reporting page) \| Climate Change Center (unable to verify 1/25) \| Commodity Credit Corporation \| Cybersecurity Collaboration Center
CCCT	Coordinating Center for Clinical Trials
CCD	Climate Change Division (unable to verify 7/17) \| Common Core of Data \| Consular Consolidated Database (pdf)
CCDB	Consumer Complaint Database
CCDF	Child Care and Development Fund
CCDI	Civil Court Data Initiative
CCDO	Community Capacity Development Office (defunct as of 6/11)
CCDP	Close Call Data Program (changed to PSDP)
CCDS	Consensus CDS

CCE	Carbon Cycle & Ecosystems \| Connecting Climate Entrepreneurs (unable to verify 4/23)
CCED	Chemical Characterization and Exposure Division
CCEEPRA	Child Care and Early Education Policy and Research Analysis (unable to verify 1/25)
CCEHBR	Center for Coastal Environmental Health and Biomolecular Research (unable to verify 10/17)
CCEHIP	Coordinating Center for Environmental Health and Injury Prevention (defunct)
CCF	Capital Construction Fund \| Census of State and Federal Adult Correctional Facilities \| Christopher Columbus Fellowship Foundation (defunct as of 3/15) \| Compassion Capital Fund (unable to verify 2/21) \| Division of Computing and Communication Foundations
CCFF	Christopher Columbus Fellowship Foundation
CCFP	Climate Change Fellows Program
CCG	Center for Cancer Genomics \| Country Commercial Guides
CCGBV	Council on Combating Gender-Based Violence (unable to verify 2/25)
CCGG	Carbon Cycle Greenhouse Gases
CCGO	Clinical Center Genomics Opportunity
CCH	Center for Cryptologic History
CCHC	Computing Cultural Heritage in the Cloud
CCHDO	CLIVAR and Carbon Hydrographic Data Office
CCHE	Center for Cancer Health Equity (reverted to CRCHD)
CCHH	Climate Change and Human Health (unable to verify 2/25)
CCHHG	Interagency Crosscutting Group on Climate Change and Human Health
CCHIS	Coordinating Center for Health Information and Service (unable to verify 12/15)
CCHM	Center for Collaborative Heat Monitoring
CCHQ	Commissioned Corps Headquarters
CCHT	Center for Countering Human Trafficking
CCI	Census of Construction Industries \| Community Catalyst Initiative \| Community College Initiative Program

CCID	Coordinating Center for Infectious Diseases (defunct)
CCIEA	California Current Integrated Ecosystem Assessment
CCIIO	Center for Consumer Information and Insurance Oversight
CCIPS	Computer Crime & Intellectual Property Section
CCIWG	Carbon Cycle Interagency Working Group
CCJJDP	Coordinating Council on Juvenile Justice and Delinquency Prevention
CCL	Commerce Control List \| Culture of Continuous Learning \| Drinking Water Contaminant Candidate List
CCLI	Capital Case Litigation Initiative
CCLMS	Commissioned Corps Learning Management System (login required; unable to verify 7/23)
CCMA	Center for Coastal Monitoring and Assessment (unable to verify 10/17)
CCMC	Community Coordinated Modeling Center
CCMIS	Commissioned Corps Management Information System
CCMS	Consumer Complaint Monitoring System \| Criminal Case Management System
CCN	Coastal Carbon Network
CCOULD	Child and Caregiver Outcomes Using Linked Data
CCP	Chemistry & Climate Processes program \| Comprehensive Conservation Plan
CCPI	Clean Coal Power Initiative (unable to verify 2/18)
CCPO	Climate Change Program Office (unable to verify 1/25)
CCQDER	Collaborating Center for Questionnaire Design and Evaluation Research

CCQM-PC	Care Coordination Quality Measure for Primary Care
CCR	Center for Cancer Research \| Center for Computing Research \| Central Contractor Registration (absorbed into SAM) \| Coal Combustion Residuals \| Commission on Civil Rights \| Consumer Confidence Reports
CC-RAPT	Climate Change Resilience and Adaptation Planning Tool
CCRB	Collaborative Clinical Research Branch
CCRC	Climate Change Resource Center
CCRDS	Center for Climate Resilience and Decision Science (unable to verify 2/25)
CCRE	Caribbean Coral Reef Ecosystems Program \| Coordination and Collaboration in the Resilience Ecosystem (unable to verify 2/25)
CCRI	Climate Change Research Initiative
CCRIS	Chemical Carcinogenesis Research Information System
CCRP	Chemical Countermeasures Research Program \| Climate Change Response Program
CCS	Capital Case Section \| Carbon Capture and Storage
CCSI	Climate Change Science Institute
CCSP	Certified Cargo Screening Program
CCSQ	Center for Clinical Standards & Quality
CCSS	Center for Cybersecurity Standards
CCST	Contract Catalog Search Tool
CCT	Center for Cancer Training
CCTAG	Children’s Coverage Technical Advisory Group
CCTAN	Child Care Technical Assistance Network (changed to T/TA)
CCTE	Center for Computational Toxicology & Exposure
CCTF	Civil Conduct Task Force (changed to ACE)
CCTN	Center for Clinical Trials Network
CCTP	U.S. Climate Change Technology Program (unable to verify 3/14) \| Community-based Care Transitions Program
CCU	Capital Case Unit (changed to CCS)
CCUS	Carbon Capture, Utilization, and Storage
CCW	Chronic Conditions Data Warehouse

CD	Climatological Data \| Compliance Division, OGE \| Counterintelligence Division
CDAC	Commerce Data Advisory Council (unable to verify 11/18) \| Confidentiality and Data Access Committee
CDAP	Center for Disability and Aging Policy (changed to CIP)
CDART	Comprehensive Disaster Assessment and Readiness Toolkit
CDAT	Community Data Analysis Tools
CDAWeb	Coordinated Data Analysis Web
CDB	Climate Diagnostics Bulletin
CDBB	Child Development and Behavior Branch
CDBG	Community Development Block Grants
CDBL	Cancer and Developmental Biology Laboratory
CDBPR	Center for Developmental Biology & Perinatal Research (absorbed into DER)
CDBS	Consolidated Database System
CDC	Centers for Disease Control and Prevention \| Consumer Data Center
CDC/ATSDR SVI	CDC/ATSDR Social Vulnerability Index
CDCO	Corporate Data Center Operations (changed to EO)
CDCS	Country Development Cooperation Strategy (unable to verify 2/25)
CDCW	CDC Washington Office
CDC WONDER	CDC Wide-ranging Online Data for Epidemiologic Research

CDD	Conserved Domains Database
CDDB	Contraceptive Discovery and Development Branch (changed to CRB)
CDDIS	Crustal Dynamics Data Information System
CDE	Campaign for Disability Employment \| Crime Data Explorer
CDER	Center for Drug Evaluation and Research
CDF	Office of the Coordinator for Digital Freedom
CDF Calculator	Customer Damage Function Calculator
CDFI	Community Development Financial Institutions
CDFI ERP	CDFI Equitable Recovery Program
CDFI RRP	CDFI Rapid Response Program
CDFW	Classified Data Forensics Workstation
CDGB	Commerce Data Governance Board
CDHC	Coral Disease & Health Consortium
CDI	Chronic Disease Indicators
CDIAC	Carbon Dioxide Information Analysis Center (migrated into ESS-DIVE)
CDIP	Crash Data Improvement Program (unable to verify 3/20)
CDITS	Consular Data Information Transfer System (pdf)
CDL	Census Depository Library \| Commercial Driver's License Program \| Cropland Data Layer
CDM	Continuous Diagnostics and Mitigation
CDNS	Climatological Data National Summary
CDO	Chief Data Officer \| Climate Data Online
CDOC	Federal Chief Data Officers Council
CDOM	Center for Delivery, Organization, and Markets (unable to verify 10/19)
CDP	Bureau of Cyberspace and Digital Policy \| Center for Domestic Preparedness \| Commercial Data Program \| Contraceptive Development Program
CDQ	Community Development Quota Program
CDR	Carbon Dioxide Removal \| Chemical Data Reporting \| Climate Data Record Program (changed to CDRs) \| community-driven relocation
CDRH	Center for Devices and Radiological Health
cdRNS	Common Data Repository for Nursing Science (unable to verify 2/25)
CDRs	Climate Data Records
CDRST	Center for Direct Reading and Sensor Technologies
CDS	Capability Development Support (archived) \| Cataloging Distribution Service \| Clinical Decision Support \| Computing and Data Science \| Crashworthiness Data System
CDSCC	Canberra Deep Space Communication Complex
CDSi	Clinical Decision Support for Immunization
CDSI	Conservation Delivery Streamlining Initiative (unable to verify)
CDSL	Cancer Data Science Laboratory
CDUP	Commerce Data Usability Project (unable to verify 11/18)
CDW	Corporate Data Warehouse
CDX	EPA Central Data Exchange

CE	Conservation Education \| Consumer Expenditure Survey \| Coordinated Entry
CEA	Council of Economic Advisers
CEAC	Consular Electronic Application Center
CEAH	Center for Epidemiology & Animal Health
CEAL	NIH Community Engagement Alliance
CEAM	Center for Exposure Assessment Modeling
CEAP	Conservation Effects Assessment Project
CEB	Pacific Coastal Ecology Branch
CEBAF	Continuous Electron Beam Accelerator Facility )
CEBB	Customs Electronic Bulletin Board (migrated to CBP)
CeBONDS	Cash Electronic Bonds
CEBR	DNA Capacity Enhancement for Backlog Reduction Program
CEBS	Chemical Effects in Biological Systems database
CEC	Clean Environment Corps Program (unable to verify 3/25) \| Climate Engagement and Capacity Building Interagency Group \| Commission for Environmental Cooperation
CECA	Center of Excellence on Children in Adversity (unable to verify 11/21) \| Clean Energy Cybersecurity Accelerator
CECC	Congressional-Executive Commission on China
CECV	CDRH Export Certificate Validation
CED	Center for Enterprise Dissemination \| Community Economic Development Program
CEDC	Communications Equity and Diversity Council (unable to verify 1/25)
CEDCaP	Census Enterprise Data Collection and Processing Systems
CEDI	Cumulative Estimated Daily Intakes \| Cybersecurity Education Diversity Initiative (unable to verify 1/25)
CEDR	Comprehensive Epidemiologic Data Resource
CEDS	Common Education Data Standards \| Comprehensive Economic Development Strategy
CEDSCI	Census Enterprise Dissemination Services and Consumer Innovation
CEE	Consumer Education and Engagement Division (changed to CEEA) \| Communication, Education, and Engagement Division
CEEA	Consumer Education and External Affairs Division
CEEBT	Center of Educational Excellence for Black Teachers Program at Historically Black Colleges and Universities
CEED	Center for Efficient Exascale Discretizations \| Climate Entrepreneurship for Economic Development (changed to CCE)
CEFI	Climate Ecosystem and Fisheries Initiative
CEGIS	Center of Excellence for Geospatial Information Science
CEHTP	California Environmental Health Tracking Program (changed to Tracking California)
CEHTTFs	Child Exploitation and Human Trafficking Task Forces
CEI	Climate Extremes Index \| Community Engaged Internship
CEIC	Clean Energy Investment Center (changed to EIC)
CEII	Critical Electric Infrastructure Information (unable to verify 9/22)

CEJST	Climate and Economic Justice Screening Tool (unable to verify 1/25; see unofficial copy from EDGI)
CELAVI	Circular Economy Lifecycle Assessment and Visualization
CELCP	Coastal and Estuarine Land Conservation Program
CELICA	Clean Energy for Low-Income Communities Accelerator
CELS	Computing, Environment, and Life Sciences
CEMC	Confocal and Electron Microscopy Core
CEMM	Center for Environmental Measurement and Modeling
CEMP	Community Environmental Monitoring Program
CEN	Bureau of the Census
CENC	Commission on Enhancing National Cybersecurity
CENDI	Federal STI Managers Group (formerly Commerce, Energy, NASA, Defense Information Managers Group)
CENP	Child Exploitation Notification Program
CENRS	NSTC Committee on Environment, Natural Resources, and Sustainability (unable to verify 1/17)
CEO	Chief Evaluation Office \| Collect Earth Online
CEOS	Child Exploitation and Obscenity Section
CEP	Commission on Evidence-Based Policymaking \| Community Eligibility Provision \| Completed Exposure Pathway \| Currency Education Program
CEPD	Caribbean Environmental Protection Division
CEPI	Center for Evidence and Practice Improvement
CEPP	Commodity Exchange Price Provisions
CEPPO	Chemical Emergency Preparedness and Prevention Office (unable to verify 12/15)
CEPS	Center for Earth and Planetary Studies
CEQ	Council on Environmental Quality
CER	Community, Equity and Resiliency (unable to verify 2/25) \| Comparative Effectiveness Research (retired 9/21)
CERC	Columbia Environmental Research Center \| Crisis & Emergency Risk Communication
CERCLIS	Comprehensive Environmental Response, Compensation, & Liability Information System (defunct; replaced by SEMS)
CERISS	Commercially Enabled Rapid Space Science
CERP	Comprehensive Everglades Restoration Plan
CERSC	Central Energy Resources Science Center
CERSIs	Centers of Excellence in Regulatory Science and Innovation
CERT	Community Emergency Response Teams \| Comprehensive Error Rate Testing
CERTS	Coronavirus Economic Relief for Transportation Services
CES	Center for Economic Studies \| Cooperative Extension System \| Counterintelligence and Export Control Section \| Current Employment Statistics \| DoD Cyber Excepted Service
CESCF	Cooperative Endangered Species Conservation Fund
CESD	Climate and Environmental Sciences Division (unable to verify 5/25)
CESER	Center for Environmental Solutions and Emergency Response \| Office of Cybersecurity, Energy Security, and Emergency Response
CET	Office of Critical and Emerging Technologies
CETAP	Cybersecurity Education and Training Assistance Program
CETC	Current and Emerging Threats Center

CfA	Center for Analytics
CFA	Center for Forecasting and Outbreak Analytics \| Commission of Fine Arts
CFACT	Center for Financing, Access, and Cost Trends
CFAP	Coronavirus Food Assistance Program (page archived 10/21)
CFAR	Centers for AIDS Research
CFATS	Chemical Facility Anti-Terrorism Standards
CFB	Center for the Book
CFBCI	Center for Faith-Based and Community Initiatives (changed to CFBNP)
CFBNP	Center for Faith-Based and Neighborhood Partnerships (changed to CFOI)
CFC	Combined Federal Campaign
CFCP	Congressionally Funded Community Projects
CFDA	Catalog of Federal Domestic Assistance (replaced by Assistance Listings)
CFE-DM	Center for Excellence in Disaster Management and Humanitarian Assistance
C-FERST	Community-Focused Exposure and Risk Screening Tool (no longer updating as of 8/19)
CFETF	COVID-19 Fraud Enforcement Task Force
CFFP	Capital Fund Financing Program (unable to verify 4/25)
CFFR	Consolidated Federal Funds Report
CFI	Charging and Fueling Infrastructure
CFID	Commercial Fishing Incident Database
CFIUS	Committee on Foreign Investments in the United States
CFL	Computers for Learning
CFLEO	Census of Federal Law Enforcement Officers
CFLHD	Central Federal Lands Highway Division
CFLR	Collaborative Forest Landscape Restoration (also, CFLRP)
CFLRP	Collaborative Forest Landscape Restoration Program (also, CFLR)
CFM	Census Flows Mapper (unable to verify 11/24) \| Cryogenic Fluid Management \| Division of Contracting & Facilities Management, FWS (changed to CGS)
CFN	Center for Functional Nanomaterials
CFO	Chief Financial Officers Council
CFOC	Chief Financial Officers Council
CFOI	Census of Fatal Occupational Injuries \| Centers for Faith and Opportunity Initiatives (unable to verify 2/21)

CFP	Child and Family Program (changed from Office of Child and Family Program) \| Climate Friendly Parks Program \| Community Forest Program
CFPB	Consumer Financial Protection Bureau
CFPCGP	Community Food Projects Competitive Grant Program
CFR	Center for Financial Research \| Code of Federal Regulations
CFRAC	Climate-related Financial Risk Advisory Committee
CFRI	Center for Financing Reform and Innovation
CFRP	Community Facilities Relending Program (unable to verify 4/25) \| Cuban Family Reunification Parole Program
CFS	Commodity Flow Survey
CFSAC	Chronic Fatigue Syndrome Advisory Committee (defunct 9/18)
CFSAN	National Center for Food Safety and Applied Nutrition (replaced by HFP)
CFSRs	Child and Family Services Reviews
CFSRU	Counterterrorism and Forensic Science Research Unit (changed to RSU)
CFSv2	Climate Forecast System Version 2
CFTC	Commodity Futures Trading Commission
CFTF	Carbon Fiber Technology Facility
CFTT	Computer Forensics Tool Testing
CFWSC	Caribbean-Florida Water Science Center
CG	Comptroller General of the United States
CGAHR	Center for Grain and Animal Health Research
CGB	Cancer Genetics Branch (changed to CGCGB) \| Clinical Genetics Branch \| Consumer & Governmental Affairs Bureau
CGC	Crop Germplasm Committees
CGCGB	Cancer Genetics and Comparative Genomics Branch
CGCI	Cancer Genome Characterization Initiative
CGCS	Cotton Ginning Cost Share Program (unable to verify 2/22)
CGDSR	Center for Genomics and Data Science Research
CGFS	Bureau of the Comptroller and Global Financial Services
CGH	Center for Global Health, CDC (changed to Global Health Center) \| Center for Global Health, NCI
CGIC	Crime Gun Intelligence Center
CGMHR	Center for Global Mental Health Research
CGO	Community Guide Office (unable to verify 9/24)
CGP	Catalog of U.S. Government Publications
CGRO	Compton Gamma-Ray Observatory
CGS	Center for Global Security (unable to verify 8/19) \| Division of Contracting and General Services (unable to verify 3/22)
CGSOC	Command and General Staff Officers Course
CGSR	Center for Global Security Research

CH	Climate and Health (unable to verify 2/25)
CHA	Community Health Assessment
CHAD	Consolidated Human Activity Database
CHAMP	Centralized Household Goods Traffic Management Program \| Climate and Hazard Mitigation Planning
CHAMPVA	Civilian Health and Medical Program of the Department of Veterans Affairs
CHANGE	Community Health Assessment and Group Evaluation Tool (page archived)
CHAPEA	Crew Health and Performance Exploration Analog
CHAS	Comprehensive Housing Affordability Strategy
CHAT	Climate Hydrology Assessment Tool (unable to verify 3/25)
CHBP	Competitive Highway Bridge Program
CHBRC	Carl Hayden Bee Research Center
CHC	Cultural Heritage Center
CHCO Council	Chief Human Capital Officers Council
CHDIR	CDC Health Disparities & Inequalities Report
CHDS	Center for Homeland Defense and Security
CHE	Division of Chemistry
CHEC	Communicating About Health Equity Concepts
CHEDS	Center for High Energy Density Science (unable to verify 8/17)
ChemCatBio	Chemical Catalysis for Bioenergy Consortium
CHEMM	Chemical Hazards Emergency Medical Management
ChemSTEER	Chemical Screening Tool for Exposures and Environmental Releases

CHEP	Community Health and Economic Prosperity
CHEU	Crude Helium Enrichment Unit (unable to verify 2/25)
CHF	Central Hazardous Materials Fund
CHI	Community Health Improvement (page archived)
CHIA	Cumulative Hydrologic Impact Assessment
CHID	Combined Health Information Database (discontinued as of 9/06)
CHIEF	Clearinghouse for Inventories & Emissions Factors
CHIIC	CDC Health Information Innovation Consortium (unable to verify 1/24)
CHILDES	Child Language Data Exchange System
CHILDREN	Child Welfare and Health Infrastructure for Linking and Data Analysis of Resources, Effectiveness, and Needs
CHILL'D Out	Cooling, Housing, Isolation & mobility, eLectricity, Learning, Drugs Outside
CHIP	Children's Health Insurance Program \| Community Health Improvement Plan \| Complete Health Improvement Program
CHIRI	Child Health Insurance Research Initiative
CHMR	Civilian Harm Mitigation and Response
CHMRAP	Civilian Harm Mitigation and Response Action Plan
CHNS	NSTC Committee on Homeland & National Security (defunct or inactive 1/17, WH transition)
CHOB	Cannon House Office Building
CHOPD	Change Healthcare/Optum Payment Disruption
CHORC	Community Health Online Resource Center (retired 10/21)
CHORDS	Climate and Health Outcomes Research Data Systems
CHP	Combined Heat and Power \| COPS Hiring Program
CHPAC	Children's Health Protection Advisory Committee
CHPS	Community Hydrologic Prediction System
CHQR	Community Health Quality Recognition
CHRC	Center for Heat Resilient Communities
CHRNS	Center for High Resolution Neutron Scattering
CHS	Census Household Survey \| Census of Horticultural Specialties
CHSI	Community Health Status Indicators (discontinued; merged into County Health Rankings & Roadmaps)
CHSP	Comparative Health System Performance Initiative

CI	Computation Institute (defunct 2018) \| Cooperative Institutes, NOAA \| Counterintelligence \| Criminal Investigation
CI2	Council for Inclusive Innovation (unable to verify 1/25)
CIA	Central Intelligence Agency
CIADM	Centers for Innovation in Advanced Development and Manufacturing (unable to verify 2/25)
CIAO	Critical Infrastructure Assurance Office (see NIAC)
CIAP	Coastal Impact Assistance Program (unable to verify 3/22)
CIAQ	Federal Interagency Committee on Indoor Air Quality
CIB	Clinical Investigations Branch
CIC	CBP Information Center \| Census Information Centers \| Consumer Information Center (discontinued; replaced by Pueblo.GPO.gov) \| Cyber Intelligence Center
CIC/AG	Counterintelligence Center Analysis Group (unable to verify 2/17)
CICA	U.S.-Mexico Border Information Center on Air Pollution
CICP	Countermeasures Injury Compensation Program
CIDA	Center for Integrated Data Analytics (changed to OWI)
CIDI	Center for International Disaster Information
CIDR	CRSSP Imagery-Derived Requirements
CID-TV	Comprehensive Incident Database on Targeted Violence
CIE	Competitive Integrated Employment
C-IEDS	Counter-IED Section (unable to verify 8/22)
CI-FLOW	Coastal and Inland Flooding Observation and Warning Project
CIFS	Center for Innovative Finance Support
CIG	Capital Investment Grants Program \| Conservation Innovation Grants
CIGFO	Council of Inspectors General on Financial Oversight
CIGIE	Council of the Inspectors General on Integrity and Efficiency
CIGP	Citizenship and Integration Grant Program (unable to verify 1/25; changed to Citizenship and Assimilation Grant Program, then reverted back 2/21)
CIH	Crop Insurance Handbook
CIHS	Center for Integrated Health Solutions (changed to Center of Excellence for Integrated Health Solutions)
CIIH	Center for Indigenous Innovation and Health
CIIHE	Center for Indigenous Innovation and Health Equity (changed to CIIH 3/25)
CIL	Cancer Innovation Laboratory
CIMC	Cleanups in My Community \| Counterintelligence Mission Center
CIMS	CDFI Information Mapping System
CINA	Criminal Investigations and Network Analysis Center
CINCH	Components of Inventory Change
CINDRR	Center of Innovation on Disability and Rehabilitation Research
CINMS	Channel Islands National Marine Sanctuary
CINT	Center for Integrated Nanotechnologies
CIO	Center for Immuno-Oncology
CIO Council	Chief Information Officers Council

CIOC	Chief Information Officers Council
CIP	Cancer Imaging Program \| Cataloging in Publication \| Center for Integrated Programs \| Division for International Communications and Information Policy (replaced by CDP) \| Office of Case Intake and Publication \| Division of Critical Infrastructure Protection
CIPAC	Critical Infrastructure Partnership Advisory Council
CIP/BA	Office of Bilateral and Regional Affairs (discontinued with establishment of CDP)
CIPHER	Complement of Integrated Protocols for Human Exploration Research
CIP/MA	Office of Multilateral Affairs (discontinued with establishment of CDP)
CIPRIS	Coordinated Interagency Partnership Regulating International Students (see SEVIS)
CIP/TS	Office of Technology and Security Policy (discontinued with establishment of CDP)
CIR	Collections Information Repository \| Current Industrial Reports
CIRA	Climate Change Impacts and Risks Analysis
CIRC	Cyber Incident Reporting Council (page archived 1/25)
CIRCLE	Catalyzing Inclusive, Resilient, and Circular Local Economies (unable to verify 1/25)
CIREN	Crash Injury Research Engineering Network
CIRG	Critical Incident Response Group
CIRI	Critical Infrastructure Resilience Institute
CIRR	Commercial Interest Reference Rates \| Office of Cyber, Infrastructure, Risk and Resilience Policy
CIS	Cancer Information Service \| Cellular Immunology Section
CISA	Clinical Immunization Safety Assessment \| Cybersecurity and Infrastructure Security Agency
CISCP	Cyber Information Sharing and Collaboration Program (unable to verify 4/23)
CISE	Directorate for Computer & Information Science & Engineering
CISR	Critical Infrastructure Security and Resilience
CISS	Crash Investigation Sampling System
CISVC	Clinical Indicators of Sexual Violence in Custody
CIT	Center for Information Technology \| United States Court of International Trade
CITA	Committee for the Implementation of Textile Agreements
CITAP	Coordinated Interagency Authorizations and Permits Program
CITEP	DoD Cyber Information Technology Exchange Program
CITES	Convention on International Trade in Endangered Species of Wild Fauna and Flora
CITF	Cuba Internet Task Force
Cities-LEAP	Cities Leading through Energy Analysis and Planning
CIV	Civil Division
CJARS	Criminal Justice Administrative Records System
CJI	Census of Jail Inmates
CJIS	Criminal Justice Information Services
CJPAF	Criminal Justice Participation Assistance Fund
CJRP	Census of Juveniles in Residential Placement
CJSSC	Civil Justice Survey of State Courts

CL Mapper	Critical Loads Mapper
CLA	Center for Legislative Archives
CLAIMS 3	Computer Linked Application Information Management System
CLARREO	Climate Absolute Radiance and Refractivity Observatory
CLAS	Center for Local Aid Support \| Culturally and Linguistically Appropriate Services
CLASIC	Community-enabled Lifecycle Analysis of Stormwater Infrastructure Costs
CLASS	Center for the Library's Analytical Scientific Samples \| Comprehensive Large Array-Data Stewardship System \| Consular Lookout and Support System
CLCCHC	Center for Linguistic and Cultural Competency in Health Care (unable to verify 9/19)
CLD	Center for Leadership Development (unable to verify 5/25) \| Contract Law Division
CLDP	Commercial Law Development Program
CLEAN	Collection of Climate and Energy Educational Resources
CLEAR	Clean Lakes, Estuaries and Rivers Initiative (unable to verify 10/24) \| Clearinghouse for Labor Evaluation and Research (unable to verify 2/25) \| Consular Launchpad For Enterprise Analytics And Reporting (pdf)
CLEAU	Census of Law Enforcement Aviation Units
CLETA	Census of Law Enforcement Training Academies
CLG	Certified Local Government
CLI	Cultural Landscape Inventory
CLIA	Clinical Laboratory Improvement Amendments
CLIAC	Clinical Laboratory Improvement Advisory Committee (unable to verify 4/25)
CLILL	Clinical Investigator Inspection List
Climate R&D	Climate Research and Development Program (changed to Ecosystems Land Change Science Program)
CLIMPER	Climate Perspectives
ClimRR	Climate Risk & Resilience

ClinGen	Clinical Genome Resource
CLIVAR	US Climate Variability and Predictability
CLL	Conforming Loan Limit
CLP	Chemistry of Life Processes
CLPPP	Childhood Lead Poisoning Prevention Program
CLPS	Commercial Lunar Payload Services
CLPT	Office of Civil Liberties, Privacy and Transparency
CLSD	Comprehensive Literacy State Development
CLU	Climate and Land Use Change (changed to Land Resources; unable to verify 9/20) \| Criminal Liaison Unit
CMA	Cash and Medical Assistance \| Center for Marine Acoustics \| Division of Contract Management and Acquisitions
CMAA	Customs Mutual Assistance Agreements
CMAP	California Current Marine Mammal Assessment Program
CMAQ	Congestion Mitigation and Air Quality Improvement Program
CMAS	Center for Multiscale Applied Sensing
CMAT	Community Mitigation Assistance Team
CMB	Center for Molecular Biophysics \| Clinical/Medical Branch \| Committee Management Branch \| Comparative Medicine Branch \| Cosmic Microwave Background
CMB-S4	Cosmic Microwave Background-Stage 4
CMBC	Creative Media and Broadcast Center
CMC	Child Care Meeting Management Center \| Connecting Minority Communities Pilot Program \| Cooperative Monitoring Center \| Office of Civilian-Military Cooperation (unable to verify 2/25)
CMCS	Center for Medicaid and CHIP Services
CME	Center for Molecular Engineering
CMEC	Census of Medical Examiner and Coroner Offices
CM/ECF	Case Management/Electronic Case Files
CMECS	Coastal and Marine Ecological Classification Standard
CMEDE	Center for Materials in Extreme Dynamic Environments (unable to verify 12/24)
CMEL	Center for Management and Executive Leadership (changed to FAA University; unable to verify 11/14)
CMF	Crash Modification Factors
CMGDS	Coastal and Marine Geoscience Data System
CMGP	Coastal and Marine Geology Program (changed to CMHRP)
CMHRP	Coastal and Marine Hazards and Resources Program
CMHS	Center for Mental Health Services

CMI	Critical Materials Innovation Hub (previously, Critical Materials Institute)
CMiO	Critical Minerals in Ores database
CMIP	Coupled Model Intercomparison Project
CMKI	Countering Malign Kremlin Influence (unable to verify 2/25)
CML	Class Member Locator (unable to verify 4/25)
CMMC	Cybersecurity Maturity Model Certification
CMMD	Condensed Matter and Materials Division (changed to MSD)
CMMI	Critical Minerals Mapping Initiative \| Division of Civil, Mechanical and Manufacturing Innovation
CMNT	Center for Micro- and Nanotechnology
CMO	Certificate Management Offices \| Charter Management Organization \| Committee Management Office \| Congressional Members Organization
CMOP	Coalbed Methane Outreach Program
CMOR	Climate Model Output Rewriter (unable to verify 5/15)
C-MORE	Construction Material Opportunities to Reduce Emissions
CMP	Census Military Panel \| Certified Mediation Program \| Civil Monetary Penalty \| Connections Marketplace
CMPR	China Military Power Report (older editions available via FDLP)
CMPRP	Civil Money Penalty Reinvestment Program
CMR	Common Metadata Repository \| Congressionally Mandated Reports
CMRA	Climate Mapping for Resilience and Adaptation
CMRP	Clinical Monitoring Research Program (changed to CMRPD)
CMRPD	Clinical Monitoring Research Program Directorate
CMRS	Case Management and Reporting System
CMS	Carbon Monitoring System \| Centers for Medicare and Medicaid Services
CMSHS	Center for Maritime Safety and Health Studies
CMSI	Crop Moisture Stress Index (unable to verify 12/21)
CMS OMH	Centers for Medicare & Medicaid Services Office of Minority Health
CMSP	Coastal and Marine Spatial Planning (unable to verfiy 2/20)
CMTS	Committee on the Marine Transportation System
CMU	Crisis Management Unit (unable to verify 10/22)
CMV	Center for Minority Veterans
CMVS	Center for Motor Vehicle Safety
CMWSC	Central Midwest Water Science Center

CN	Choice Neighborhoods program (unable to verify 4/25)
CNA e-Tool	Capital Needs Assessment Electronic Tool
CNAFR	Council for Native American Farming and Ranching
CNB	Clinical Neuroscience Branch (defunct)
CNBE	Office of the Chief National Bank Examiner
CNC	Civil Nuclear Credit Program
CNCS	Corporation for National and Community Service (changed to AmeriCorps 9/20)
CNCSOIG	Corporation for National and Community Service Office of Inspector General (changed to AmeriCorps OIG)
CNE	Office of Counternarcotics Enforcement (unable to verify 8/12; see 2010 OIG report)
CNEOS	Center for Near Earth Object Studies
CNM	Center for Nanoscale Materials
CNMS	Center for Nanophase Materials Sciences
CNPP	Center for Nutrition Policy and Promotion \| Community Navigator Pilot Program (terminated 5/23)
CNPS IWG	Computing-Enabled Networked Physical Systems Interagency Working Group
CNRFC	California Nevada River Forecast Center
CNS	Corporation for National and Community Service (changed to CNCS) \| Division of Computer and Network Systems
CNSD	Computing and Network Services Division
CNSS	Child Nutrition Sharing Site \| Committee on National Security Systems
CNST	Center for Nanoscale Science and Technology
COA	Census of Agriculture \| Clinical Outcome Assessments (changed to DCOA)

COAC	Commercial Customs Operations Advisory Committee (previously, Advisory Committee on Commercial Operations of the Customs and Border Protection)
C.O.A.L.	Claimant Online Access Link
COALS	Cable Operations and Licensing System
COAST	Coastal Ocean Assessments, Status, and Trends (unable to verify 5/16)
CoastsIG	Coasts Interagency Group
COB	Coordination of Benefits
COB&R	Coordination of Benefits & Recovery
COBRA	CO-Benefits Risk Assessment Health Impacts Screening and Mapping Tool \| Consolidated Omnibus Budget Reconciliation Act
CoC	Congressional Oversight Commission \| Continuum of Care Program
COCA	Clinician Outreach and Communication Activity \| Coastal and Ocean Climate Applications
CoCASA	Comprehensive Clinic Assessment Software Application
CoCHP	Coordinating Center for Health Promotion (defunct)
COCLI	Combating Overdose through Community-Level Intervention (unable to verify 2/25)
COD	Common Origination and Disbursement
CODAP-NA	Coastal Ocean Data Analysis Product in North America
CODIS	Combined DNA Index System
COE	Center for Outcomes and Evidence (merged into CEPI) \| Centers of Excellence, DHS \| Condition of Education \| Grants Center of Excellence
CoECI	Center of Excellence for Collaborative Innovation
COER	Commissioned Officers’ Effectiveness Report
COFFA	Council on Federal Financial Assistance (unable to verify 2/25)
COFO	Coalition of Federal Ombudsman (unable to verify 3/25)
COG	Census of Governments
COGH	Coordinating Office for Global Health (changed to CGH)
COIL	Census Open Innovation Labs \| Congressional Office for International Leadership
COJ	Census of Jails
COL	Cooperative Oxford Laboratory
COLA	Certification/Exemption of Label/Bottle Approvals
COLC	Copyright Office, Library of Congress
COLE	Carbon OnLine Estimator
College AIM	College Alcohol Intervention Matrix
COM	Climate Observations and Monitoring
COMBAT	Commercial Building Analysis Tool for Energy-Efficient Retrofits (unable to verify 6/19)
COMEC	Collaborating Office for Medical Examiners and Coroners
COMET	Carbon Management Evaluation Tool \| City-based Optimization Model for Energy Technologies \| Communication and Education in Tumor Profiling
COMETS	COnsortium of METabolomics Studies
COMET-VR	Carbon Management Evaluation Tool, Voluntary Reporting
CoMFRT	Co-Management of Fire Risk Transmission
ComPASS	Community Partnerships to Advance Science for Society
CompTox	Computational Toxicology Chemicals Dashboard
COMT	Coastal and Ocean Modeling Testbed
CONCEPTS	CONservational Channel Evolution and Pollutant Transport System
CoNED	Coastal National Elevation Database
CONET	Control and Optimization of Networked Energy Technologies Laboratory
CONFFRM	Cooperative Network for Renewable Resource Measurements
CONPLAN	U.S. Government Interagency Domestic Terrorism Concept of Operations Plan (unable to verify 1/23)
CONSER	Cooperative Online Serials
COOL	Country of Origin Labeling
COOLR	Cooperative Open Online Landslide Repository
COOP	Continuity of Operations, GSA \| Continuity of Operations Program, HHS (unable to verify 4/24) \| Cooperative Observer Network

CO-OP	Consumer Operated and Oriented Plan
CO-OPS	Center for Operational Oceanographic Products and Services
CoP	Conference of the Parties
COPAG	Cosmic Origins Program Analysis Group
COPR	Council of Public Representatives (unable to verify 11/14)
COPS	Office of Community Oriented Policing Services
COPs/ROPs	Country Operational Plans/Regional Operational Plans
COR	Conservation and Outdoor Recreation Division \| Cosmic Origins Program
CORA	Coastal Ocean Reanalysis
CORAL	COral Reef Airborne Laboratory
CORD	CDC Online Resource Directory (unable to verify 12/18) \| Childhood Obesity Research Demonstration
CORE	Cultivating, Optimizing, Reinforcing, Enhancing (unable to verify 2/25)
CORE Network	Coordinated Outbreak Response and Evaluation Network
Core SIPP	Core State Injury Prevention Program
Core SVIPP	Core State Violence and Injury Prevention Program (replaced by Core SIPP)
Core VIPP	Core Violence and Injury Prevention Program (changed to Core SVIPP)
CORE+EP	Office of Coordinated Outbreak Response, Evaluation & Emergency Preparedness
CORES	COmmission REgistration System
CoRIS	Coral Reef Information System
CORP	Corporation for National and Community Service (changed to CNCS)
CORR	Center for Occupational Robotics Research
CORS	Continuously Operating Reference Stations
CoRTAD	Coral Reef Temperature Anomaly Database
CORVD	Coronavirus and Other Respiratory Viruses Division
CoS	NSTC Committee on Science (defunct or inactive 1/17, WH transition)
COS	CareerOneStop \| Report of Organization
COSI	Compton Spectrometer and Imager
COSIM	Climate, Ocean and Sea Ice Modeling (unable to verify 12/16)
CoSMoS	Coastal Storm Modeling System
COSSAP	Comprehensive Opioid, Stimulant, and Substance Abuse Program (changed to COSSUP)
COSSUP	Comprehensive Opioid, Stimulant, and Substance Use Program
CoSTEM	NSTC Committee on Science, Technology, Engineering, and Math Education (defunct or inactive 1/17, WH transition)
CoT	NSTC Committee on Technology (defunct or inactive 1/17, WH transition)
COTPER	Coordinating Office for Terrorism Preparedness & Emergency Response (defunct)
COTS	Cotton, Oilseeds, Tobacco and Seeds Division (unable to verify 12/13)
CovEx	COVID Experiences Surveys (unable to verify 1/25)
COVID AQS	COVID Air Quality Study
COVID-NET	Coronavirus Disease 2019 (COVID-19) Hospitalization Surveillance Network
COVIS	Cholera and Other Vibrio Illness Surveillance

CP	Chemistry and Pharmacology Branch \| Commodity Procurement Program
CP3	Center for Prevention Programs and Partnerships \| Center for Primary Care, Prevention, and Clinical Partnerships (merged into CEPI)
CPA	Cuba Prohibited Accommodations \| Office of Congressional and Public Affairs, State
CPAA	Cultural Property, Art and Antiquities Investigations
CPAD	Chemical and Pollutant Assessment Division
CPAG	Cybersecurity Program Audit Guide
CPAMS	Conservation Practice Adoption Motivations Survey
CPARD	Certification Plan and Reporting Database
CPARS	Contractor Performance Assessment Reporting System
CPB	Chemistry and Pharmaceutics Branch \| Consultation Package Builder \| Consumer Protection Branch \| Corporation for Public Broadcasting
CPC	Casual Payment Center \| Climate Prediction Center \| Cooperative Patent Classification \| Countries of Particular Concern
CPCat	Chemical and Product Categories (unable to verify 12/21)
CPCRC	Columbia Plateau Conservation Research Center
CPD	Center for Protected Disclosures \| Continuity Planning Division \| Correctional Programs Division \| Office of Community Planning and Development
CPDat	Chemical and Products Database
CPDB	Carcinogenic Potency Database (retired 12/19)
CPDO	Census of Public Defender Offices
CPEX	Census Program for Evaluations and Experiments
CPF	Capital Projects Fund \| Community Project Funding
CPFFCL	Census of Publicly Funded Forensic Crime Laboratories
CPG	Comprehensive Procurement Guideline program \| Cybersecurity Performance Goals
CPGL	Conservation of Private Grazing Land (unable to verify 10/22)
CPGM	Compliance Program Guidance Manual (changed to Compliance Program Manual)
CPH	Census of Population and Housing
CPHC	Central Pacific Hurricane Center
CPHEA	Center for Public Health and Environmental Assessment
CPHR	Center for Precision Health Research
CPHST	Center for Plant Health Science and Technology (unable to verify 4/24)
CPI	Center for Program Integrity \| Consumer Price Index \| Counter-Proliferation Investigations (unable to verify 5/24) \| Office of Counter-Proliferation Initiatives
CPIC	Capital Planning and Investment Control
CPID	Chemical Processes & Instrument Development
CPIM	Critical Path Innovation Meetings
CPM	Clinical Performance Measures
CPMC	Copyright Public Modernization Committee
CPMS	Customer Profile Management System, USCIS
CPN	Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section

CPNI	Customer Proprietary Network Information
CPO	Climate Program Office \| Coral Protocols Online (unable to verify 1/23) \| Corrections Program Office (now part of BJA)
CPONDER	CDC’s PRAMS Online Data for Epidemiologic Research (discontinued: replaced by PRAMStat)
CPOS	Credentialing Post Office Sites
CPP	Capital Purchase Program \| City Pair Program \| Civilian Personnel Policy \| Clean Power Plan (repealed 6/19)
CPPBSD	Committee for Purchase From People Who Are Blind or Severely Disabled (aka "U.S. AbilityOne Commission")
CPPD	Climate Protection Partnerships Division (unable to verify 9/15)
CPPE	Conservation Practice Physical Effects
CPPM	Crop Protection and Pest Management Program
CPPW	Communities Putting Prevention to Work Program (site archived)
CPR	Center for Population Research (absorbed into DER) \| Center for Preparedness and Response (changed to ORR)
CPRC	Conflict Prevention and Resolution Center
CPRG	Climate Pollution Reduction Grants
CP-RND	Critical Path for Rare Neurodegenerative Diseases
CPRS	Construction Progress Reporting Survey \| Copyright Public Records System
CPRT	Cybersecurity and Privacy Reference Tool
CPS	Bureau for Conflict Prevention and Stabilization (unable to verify 2/25) \| Child Passenger Safety (replaced by Parents Central, then Parents and Caregivers, then Child Safety) \| Collaborative Problem-Solving Cooperative Agreement Program \| Current Population Survey
CPSC	Census of Problem-Solving Courts \| Consumer Product Safety Commission
CPS-FSS	Current Population Survey Food Security Supplement
CPSO	Cataloging Policy and Support Office (changed to PSD)
CPSRB	Chemistry and Physiological Systems Research Branch (changed to CP)
CPT	Cannabis Policy Taxonomy
CPVA	Child Pornography Victim Assistance (changed to CENP)
CPWR	Center for Construction Research and Training
CQR	Census Count Question Resolution
CQuIPS	Center for Quality Improvement and Patient Safety
CR	Country Roadmaps (unable to verify 4/25)
CR4HC	Climate Resilience for Health Care Toolkit

CRA	Commercial Routing Assistance \| Community Reinvestment Act
CRAD	Compliance Risk Analysis Division (unable to verify 8/21)
CRAFT	Climate Resilience and Adaptation Funding Toolbox
CRAVE	CERES Radiation and Validation Experiment
CRB	Contraception Research Branch \| Copyright Royalty Board
CRC	Cancer, Reproductive, Cardiovascular, and Other Chronic Disease Prevention Program \| Civil Rights Center \| Coastal Resilience Center
CRCC Strategy	Cultural Resources Climate Change Strategy
CRCCP	Colorectal Cancer Control Program
CRCCR	Civil Rights Cold Case Records
CRCHD	Center to Reduce Cancer Health Disparities (changed to CCHE; reverted to CRCHD)
CRCL	Office for Civil Rights and Civil Liberties
CRCP	Commercial Repayment Center Portal \| Coral Reef Conservation Program
CRDC	Civil Rights Data Collection
CRDP	Cataloging Record Distribution Program
CRE	Climate Ready Estuaries \| Community Resilience Estimates
CREAT	Census Research Exploration and Analysis Tool \| Climate Resilience Evaluation and Awareness Tool
CreDS	Credentialing Distribution System
CRENL	Commission to Review the Effectiveness of the National Energy Laboratories (terminated)
CREP	Conservation Reserve Enhancement Program
CREST	CIA Records Search Tool \| Coastal Resilience Evaluation and Siting Tool \| Cost of Renewable Energy Spreadsheet Tool
CREW	Continuous Reliability Enhancement for Wind (unable to verify 10/20)
CREx	Collaborative Research Exchange
CRF	Combustion Research Facility
CRGB	Clinical Research Grants Branch
CRGGH	Center for Research on Genomics and Global Health
CRGIS	Cultural Resources Geographic Information Systems

CRGR	Committee to Review Generic Requirements
CRH	Contraception & Reproductive Health Branch (changed to CDDB, then CRB)
CRHP	Civil Rights History Project
CRI	Chain Reaction Innovations \| Cities Readiness Initiative
CRIA	Interagency Forum on Climate Risks, Impacts and Adaptation
CRIS	Center for Risk & Integrated Sciences (unable to verify 12/13) \| Current Research Information System (replaced by REEport) \| Customer Relationship Interface System
CRISI	Consolidated Rail Infrastructure and Safety Improvements Program
CRISP	Computer Retrieval of Information on Scientific Projects (merged into RePORT)
CRM	Climate Risk Management (unable to verify 1/25) \| Coastal Relief Model \| Criminal Division \| Cultural Resources Management
CRMC	Center for Research for Mothers & Children (absorbed into DER)
CRMS	Civil Rights Management System \| Coastwide Reference Monitoring System
CRNR	Coral Reef and Natural Resources
CROIE	Cultural Resources Office of Interpretation and Education
CROMERR	Cross-Media Electronic Reporting Rule
Crop-CASMA	Crop Condition and Soil Moisture Analytics
CROPS	Cost-effective Rollover Protective Structures (page archived)
CROSS	Customs Rulings Online Search System
CRP	Capital Readiness Program \| Carbon Reduction Program \| Community Resilience Panel for Buildings and Infrastructure Systems (terminated 12/17) \| Conservation Reserve Program
CRPDG	Compensation Research and Program Development Group
CRR	Climate Resilience Resources for Cultural Heritage \| Cyber Resilience Review
CRRL	Columbia River Research Laboratory
CRS	Center for Research Strategy \| Centralized Receivables Service \| Citation Retrieval System \| Community Relations Service \| Congressional Research Service
CRS++	Creditor Reporting System
CRSCI	Climate-Ready States and Cities Initiative
CRSP	Colorado River Storage Project
CRSRA	Commercial Remote Sensing Regulatory Affairs
CRSS	Crash Report Sampling System
CRSSP	Commercial Remote Sensing Space Policy
CRT	Civil Rights Division \| Climate Resilience Toolkit \| Country Reports on Terrorism
CRUPs	Cultural Resource Use Permits (unable to verify 3/25)
CRW	Coral Reef Watch
CRWS-BoK	Cyber Resilient Weapon Systems Body of Knowledge
CRWU	Creating Resilient Water Utilities

CS	U.S. Commercial Service
CS&C	Office of Cybersecurity and Communications (changed to CISA Cybersecurity Division)
CSA	DoD Cyber Service Academy
CSAC	Census Scientific Advisory Committee (terminated 2/25) \| Chemical Security Analysis Center \| CISA Cybersecurity Advisory Committee \| Citizens' Stamp Advisory Committee
CSAF	Climate-Smart Agriculture and Forestry (unable to verify 1/25)
CSAI	Complete Streets AI (unable to verify 3/25)
CSAP	Center for Substance Abuse Prevention
CSAPR	Cross-State Air Pollution Rule
CSAT	Center for Substance Abuse Treatment \| Corrections Statistical Analysis Tool
CSB	Center for Structural Biology \| Clean School Bus Program \| Crop Sequence Boundaries \| U.S. Chemical Safety Board
CSBG	Cell and Structural Biology Group \| Community Services Block Grant
CSC	Climate Science Centers (changed to CASC) \| Cyberspace Solarium Commission \| NOAA Coastal Services Center (merged into OCM) \| Office of Science Consolidated Service Center
CSCE	Commission on Security and Cooperation in Europe (Helsinki Commission)
CSCI	Climate Smart Communities Initiative (unable to verify 2/25)
CSCOR	Center for Sponsored Coastal Ocean Research (unable to verify 10/17)
C-SCRIP	Communications Supply Chain Risk Information Partnership
CSD	Chemical Sciences Division (LLNL) (changed to NACS) \| Chemical Sciences Division (NIST) \| Chemical Sciences Division (NOAA) (changed to CSL) \| Computer Security Division \| Cybersecurity Division
CSDA	Commercial Smallsat Data Acquisition Program

CSDL	Coast Survey Development Laboratory (unable to verify 2/21)
CSE	Office of Child Support Enforcement (changed to OCSE)
CSELS	Center for Surveillance, Epidemiology and Laboratory Services (unable to verify 2/23)
CSEM	Case Studies in Environmental Medicine (page archived)
CSEPP	Chemical Stockpile Emergency Preparedness Program
CSESP	Citizen Science for Earth Systems Program
CSET	Cyber Security Evaluation Tool
CSEWG	Cross Section Evaluation Working Group
CSF	Cybersecurity Framework
CSFC	Center for Sustainable Fuels and Chemicals
CSFP	Commodity Supplemental Food Program
CSG	Community Service Grant
CSGB	Chemical Sciences, Geosciences, and Biosciences Division \| Computational and Statistical Genomics Branch (changed to CGDSR)
CSGCL	Crop Systems and Global Change Lab (changed to ACSL)
CSI	Center for the Study of Intelligence (unable to verify 2/21) \| Climate and Societal Interactions Division \| Coastal Salinity Index \| Computational Science Initiative \| Conservation Study Institute (changed to Stewardship Institute) \| Container Security Initiative
CSIA IWG	Cyber Security and Information Assurance Interagency Working Group
CSL	Chemical Sciences Laboratory \| Chemical Security Laboratory \| Consolidated Screening List
CSLLEA	Census of State and Local Law Enforcement Agencies
CSM	Construction & Security Management Directorate
CSMAC	Commerce Spectrum Management Advisory Committee
CSMB	Center for Structural Molecular Biology
CSMS	Cargo Systems Messaging Service
CSN	Consumer Sentinel Network
CSO	Bureau of Conflict and Stabilization Operations \| Congressional Staff Organization \| Office of the Federal Chief Sustainability Officer
CSOD	FAI Cornerstone OnDemand
CSOS	Controlled Substance Ordering System
CSOSA	Court Services and Offender Supervision Agency for the District of Columbia
CSOTUS	Chief Statistician of the United States

CSP	Charter Schools Programs \| Community Science Program \| Concentrating Solar Power \| Conservation Stewardship Program \| Controlled Substances Program \| Court Statistics Project
CSPD	Cargo Systems Program Directorate
CSPECE	Choose Safe Places for Early Care and Education program
CSPED	National Child Support Noncustodial Parent Employment Demonstration
CSPOS	Computational Statistics and the Production of Official Statistics (changed to DSFS)
CSPR	Consolidated State Performance Reports (unable to verify 10/10)
CSPro	Census and Survey Processing System
CSR	Center for Scientific Review \| Comprehensive School Reform Program (unable to verify 12/21) \| Corporate Social Responsibility
CSRB	Cyber Safety Review Board
CSRC	Computer Security Resource Center
CSREES	Cooperative State Research, Education, and Extension Service (changed to NIFA)
CSRI	Computer Science Research Institute
CSRIC	Communications Security, Reliability and Interoperability Council
CSRM	Center for Statistical Research and Methodology
CSRS	Call Sign Reservation and Authorization System
CSRT	Climate-Smart Restoration Tool
CSR-TTAC	Crisis Systems Response Training and Technical Assistance Center
CSS	Campus Safety and Security \| Chemical Safety for Sustainability \| Controlled Substance Staff \| Core Science Systems \| Crime and Safety Surveys
CSSBMB	Commission on the Social Status of Black Men and Boys
CSSI	Center for Strategic Scientific Initiatives
CSSR	Climate Science Special Report
CSS-SMI	Clinical Support System for Serious Mental Illness (unable to verify 7/24)
CSST	Community Solar Scenario Tool
CSTL	Chemical Science & Technology Laboratory (merged into MML) \| Constitutional and Specialized Tort Litigation Section
CSTLTS	Center for State, Tribal, Local, and Territorial Support (unable to verify 5/24)
CSTOR	CDC Specimen Test Order and Reporting
CSTP	Cooperative Shark Tagging Program

CT	Bureau of Counterterrorism and Countering Violent Extremism (changed to Bureau of Counterterrorism) \| Cryptographic Technology Group
CT2022	CarbonTracker 2022
CTA	Center for Transportation Analysis (unable to verify 9/19, see Transportation Analysis) \| Conservation Technical Assistance
CTAC	Cadmium Telluride Accelerator Consortium \| Commercial Targeting and Analysis Center
CTAP	Coronavirus Treatment Acceleration Program \| COVID-19 Technical Assistance Program
CTAS	Center-TRACON Automation System (unable to verify 4/25) \| Coordinated Tribal Assistance Solicitation
CTC	Counterterrorism Center \| Counterterrorist Center (changed to NCTC)
CTCC	CUFR [Center for Urban Forest Research] Tree Carbon Calculator (unable to verify 2/24)
CTCEU	Counterterrorism and Criminal Exploitation Unit
CTCMS	NIST/MML Center for Theoretical and Computational Materials Science
CTCP	Office of Counterterrorism and Counterproliferation
CTD	Collecting Taxes Database (unable to verify 2/25) \| Comparative Toxicogenomics Database (retired 12/19) \| Counterterrorism Division (unable to verify 11/14)
CTD2	Cancer Target Discovery and Development
CTE	Career/Technical Education
CTECS	Counter-Terrorism and Emergency Coordination Staff
CTEP	Cancer Therapy Evaluation Program \| China and Transformational Exports Program
CTG	Community Transformation Grant Program (site archived)
CTIIC	Cyber Threat Intelligence Integration Center (unable to verify 1/22)

CTIP	Combating Trafficking in Persons
CTJA02	Census of Tribal Justice Agencies in American Indian and Alaska Native Tribal Jurisdictions
CT-L	CarbonTracker-Lagrange
CTL	Communications Technology Laboratory
CTM	Certified Trade Missions
CTMB	Clinical Trials Monitoring Branch
CTMC	Counterterrorism Mission Center (changed to CTC)
CTMS	DHS Cybersecurity Talent Management System
CTN	Clinical Trials Network
CT-NRT	CarbonTracker Near-Real Time
CTOC	Counter Transnational Organized Crime Program
CTOS	Counter Terrorism Operations Support
CTOT	Career Trajectories and Occupational Transitions Dashboard
CTP	Center for Tobacco Products \| Clinical Trials Program \| Office of Critical Technology Protection
CTPAT	Customs-Trade Partnership Against Terrorism
CTPP	Census Transportation Planning Products
CTPR	Cancer Trends Progress Report
CTR	Center for Transportation Research (unable to verify 6/24) \| Office of Cooperative Threat Reduction
CTS	Compliance Tracking System \| Countermeasure Tracking Systems (unable to verify 1/20) \| Counterterrorism Section
CTSA	Clinical and Translational Science Awards
CTTP	Counterterrorism and Threat Prevention Policy
CTTSO	Combating Terrorism Technical Support Office (changed to IWTSD)
CTW	Consolidated Terrorist Watchlist (unable to verify 8/22)
C-UAS	Counter-Unmanned Aircraft Systems
CUC	Council on Underserved Communities (unable to verify 1/25)

CUE	Center for Urban Ecology (changed to NRS)
CUI	Controlled Unclassified Information
CUIO	Controlled Unclassified Information Office
CUPCAO	Central Utah Project Completion Act Office
CuPID	Cusp Plasma Imaging Detector
CUPSS	Check Up Program for Small Systems (unable to verify 12/15)
CURE	Office of Credit Union Resources and Expansion
CURIE	Converting UNF Radioisotopes Into Energy
CUSP	Comprehensive Unit-based Safety Program
CVC	Capitol Visitor Center
CVCTP	Commercial Vehicle Counterterrorism Training Program (unable to verify 5/21)
CVD	Coordinated Vulnerability Disclosure Program
CVDB	Chronic Viral Diseases Branch
CVE	Center for Veterans Enterprise (merged into OSDBU) \| Common Vulnerabilities and Exposures \| Countering Violent Extremism (archived 9/22)
CVE-AS	Countering Violent Extremism and Active Shooter (archived 9/22)
CVF	Crime Victims Fund
CVFR	Current Value of Funds Rate
CVM	Center for Veterinary Medicine
CVO	Cascades Volcano Observatory
CVP	Center for Conflict and Violence Prevention (unable to verify 2/25) \| Climate Variability & Predictability
CVTEMP	Central Valley Temperature Mapping and Prediction

CWBYCTP	C.W. Bill Young Cell Transplantation Program
CWC	Chemical Weapons Convention \| Compensation and Working Conditions (merged into MLR 9/12)
CWCC	Child Welfare Community Collaborations
CWCS	Center for Workers’ Compensation Studies
CWDG	Community Wildfire Defense Program
CWDST	Great Lakes Coastal Wetland Decision-Support Tool
CWFR	Center for Work and Fatigue Research
CWG	White House Council on Women and Girls (defunct or inactive 1/17, WH transition)
CWHSP	Coal Workers' Health Surveillance Program
CWIFT	Comparable Wage Index for Teachers
CWMD	Countering Weapons of Mass Destruction Office
CWNS	Clean Watersheds Needs Survey
CWPP	Community Wildfire Protection Plans
CWSC	California Water Science Center \| Colorado Water Science Center
CWSRF	Clean Water State Revolving Fund
CWSS	Civil War Soldiers and Sailors System
CWT	Compensated Work Therapy
CWTG	Coastal Water Temperature Guide
CWV	Center for Women Veterans
CWWED	Coastal Wind and Water Event Database
CXD	Customer Experience Directorate
CXRO	Center for X-Ray Optics
CyAN app	Cyanobacteria Assessment Network mobile application
CyDaR	Cyber Deterrence and Resilience
CYFAR	Children, Youth, and Families at Risk Grant Program
CYGNSS	Cyclone Global Navigation Satellite System
CYMC	Cyber Mission Center (changed to CIC)
CZIC	Coastal Zone Information Center
CZM	Coastal Zone Management Program